1.Assume organic matter with chemical formula of CH2O converts to CO2. Balance the reaction. Determine redox state of carbon for both compounds
2.In a redox reaction SO4^2- converts to H2S. Write down the balanced reaction for this conversion. Also determine redox state of sulfur in both the compounds.
3.Derive the porosity values for cubic, orthorhombic, and rhombohedral packing of spheres. Include sketches supporting your calculations of the bulk volumes of the unit cells.
4.You have a beaker filled with coarse sand. The capacity of the beaker is 100cm^3. Next, you add to the beaker 40cm^3 of distilled water, filling the water level exactly to the top of the sand. What is the porosity of the sand?